Lactophrys trigueter (Linnaeus 1758), the Smooth Cowfish.
Tropical west Atlantic. To about eighteen inches in length. A juvenile
in Curacao 2015. TiffB pic.

Cantherhines pullus (Ranzani 1842), the Orange-spotted Filefish.
Tropical West Atlantic. To eight inches in length. A more common
aquarium offering. One with its single dorsal "trigger" up in Curacao
2015. TiffB pic.